Wacker-chemie Gmbh

Richard Becker

Hermann Braunling

Wolf-Dieter Hergeth

Mehmet Gunaltay

Georg Bloechl

Frank Rindfleisch

Herbert Jekat

Heribert Wendenburg

Hermann Braeunling

The invention provides a process for heterophase reactions in a liquid or supercritical dispersion medium, in which the starting materials are introduced into the reaction zone of a reactor provided with one or more enrichment zones and the reaction product or unreacted starting material or both starting material and reaction product are discharged via one enrichment zone in each case, wherein a) the reaction product together with the dispersion medium is discharged from the reactor via an enrichment zone, the reaction product is separated off and the dispersion medium is, if desired in countercurrent to the reaction product/dispersion medium mixture and via an enrichment zone, returned to the reaction zone, or b) unreacted starting material together with the dispersion medium is discharged, the starting material is separated from the dispersion medium and returned directly to the reaction zone and the dispersion medium is, if desired, in countercurrent to the reaction product/dispersion medium mixture and via an enrichment zone, returned to the reaction zone, or the steps a) and b) are combined with one another.

Process for heterophase reactions in a liquid or supercritical dispersion medium

Compounds of the formula (1) ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 have the meanings given in the description, and the other radicals have the following meanings:

Arylmethylols, their preparation and their use

Basic polypyrrylenemethines, and salts thereof, having conjugated double bonds and constructed from optionally substituted five-membered heterocyclic rings containing nitrogen, as the only hetero atom in the ring are disclosed, with the five-membered rings, in each case, being bonded to one another in pairs via an optionally substituted carbon atom as a bridging member. The polymer compositions of the invention contain at least five of these five-membered rings and 0 to 50%, relative to the weight of these polymers, of dopants and/or being electrochemically doped. A process for the preparation of the claimed compositions is further disclosed. The polymer compositions of the invention have electroconducting and semi-conducting properties and are useful, for example, in batteries, circuits and switches, if appropriately used in conjunction with other polymers. In addition, the compounds of the invention can also be employed as absorbents for heavy metals and as catalysts.

Basic polypyrrylenemethines and salts thereof, and a process for their

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Emmerting, Germany

Richard Becker